﻿/*
   Copyright 2013 Dmitry Bratus

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
*/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ServiceModel;
using Flower.Services.Data;
using System.Transactions;

namespace Flower.Services.Host
{
    [ServiceBehavior(
        InstanceContextMode = InstanceContextMode.Single,
        ConcurrencyMode = ConcurrencyMode.Multiple, 
        ReleaseServiceInstanceOnTransactionComplete = false,
        TransactionIsolationLevel = IsolationLevel.ReadCommitted)]
    internal class QueueService : IQueueService
    {
        private readonly IQueueService _queueService;

        public QueueService(IQueueService queueService)
        {
            _queueService = queueService;
        }

        [OperationBehavior(TransactionScopeRequired = true, TransactionAutoComplete = true)]
        public Guid Enqueue(string recipient, Data.Blob message)
        {
            return _queueService.Enqueue(recipient, message);
        }

        [OperationBehavior(TransactionScopeRequired = true, TransactionAutoComplete = true)]
        public Data.Blob Dequeue(string recipient, string waiterPid)
        {
            return _queueService.Dequeue(recipient, waiterPid);
        }

        public IList<string> GetRecipients(long start, long limit)
        {
            return _queueService.GetRecipients(start, limit);
        }

        public IList<QueueServiceMessage> GetMessagesById(IList<Guid> ids)
        {
            return _queueService.GetMessagesById(ids);
        }

        public IList<QueueServiceMessage> GetMessagesByRecipient(IList<string> recipients, DateTime? start, DateTime? end)
        {
            return _queueService.GetMessagesByRecipient(recipients, start, end);
        }

        public IList<Recipient> ExportRecipients(IList<string> recipients)
        {
            return _queueService.ExportRecipients(recipients);
        }

        public void ImportRecipients(IList<Recipient> recipients)
        {
            _queueService.ImportRecipients(recipients);
        }

        public void RemoveMessages(IList<Guid> ids)
        {
            _queueService.RemoveMessages(ids);
        }

        public void RemoveRecipients(IList<string> recipients)
        {
            _queueService.RemoveRecipients(recipients);
        }
    }
}
